public async Task <IActionResult> AuthenticationRequestAsync(string partyId)
{
logger.ScopeTrace(() => "Up, OIDC Authentication request.");
var oidcUpSequenceData = await sequenceLogic.GetSequenceDataAsync <OidcUpSequenceData>(remove : false);
if (!oidcUpSequenceData.UpPartyId.Equals(partyId, StringComparison.Ordinal))
{
throw new Exception("Invalid up-party id.");
}
logger.SetScopeProperty(Constants.Logs.UpPartyId, oidcUpSequenceData.UpPartyId);
var party = await tenantRepository.GetAsync <TParty>(oidcUpSequenceData.UpPartyId);
logger.SetScopeProperty(Constants.Logs.UpPartyClientId, party.Client.ClientId);
await oidcDiscoveryReadUpLogic.CheckOidcDiscoveryAndUpdatePartyAsync(party);
var nonce = RandomGenerator.GenerateNonce();
var loginCallBackUrl = HttpContext.GetUpPartyUrl(party.Name, Constants.Routes.OAuthController, Constants.Endpoints.AuthorizationResponse, partyBindingPattern: party.PartyBindingPattern);
oidcUpSequenceData.ClientId = !party.Client.SpClientId.IsNullOrWhiteSpace() ? party.Client.SpClientId : party.Client.ClientId;
oidcUpSequenceData.RedirectUri = loginCallBackUrl;
oidcUpSequenceData.Nonce = nonce;
if (party.Client.EnablePkce)
{
var codeVerifier = RandomGenerator.Generate(64);
oidcUpSequenceData.CodeVerifier = codeVerifier;
}
await sequenceLogic.SaveSequenceDataAsync(oidcUpSequenceData);
var authenticationRequest = new AuthenticationRequest
{
ClientId = oidcUpSequenceData.ClientId,
ResponseMode = party.Client.ResponseMode,
ResponseType = party.Client.ResponseType,
RedirectUri = loginCallBackUrl,
Nonce = nonce,
State = await sequenceLogic.CreateExternalSequenceIdAsync()
};
switch (oidcUpSequenceData.LoginAction)
{
case LoginAction.ReadSession:
authenticationRequest.Prompt = IdentityConstants.AuthorizationServerPrompt.None;
break;
case LoginAction.RequireLogin:
authenticationRequest.Prompt = IdentityConstants.AuthorizationServerPrompt.Login;
break;
default:
break;
}
if (oidcUpSequenceData.MaxAge.HasValue)
{
authenticationRequest.MaxAge = oidcUpSequenceData.MaxAge;
}
if (!oidcUpSequenceData.UserId.IsNullOrEmpty())
{
authenticationRequest.LoginHint = oidcUpSequenceData.UserId;
}
authenticationRequest.Scope = new[] { IdentityConstants.DefaultOidcScopes.OpenId }.ConcatOnce(party.Client.Scopes).ToSpaceList();
//TODO add AcrValues
//authenticationRequest.AcrValues = "urn:federation:authentication:windows";
logger.ScopeTrace(() => $"Up, Authentication request '{authenticationRequest.ToJsonIndented()}'.", traceType: TraceTypes.Message);
var nameValueCollection = authenticationRequest.ToDictionary();
if (party.Client.EnablePkce)
{
var codeChallengeRequest = new CodeChallengeSecret
{
CodeChallenge = await oidcUpSequenceData.CodeVerifier.Sha256HashBase64urlEncodedAsync(),
CodeChallengeMethod = IdentityConstants.CodeChallengeMethods.S256,
};
logger.ScopeTrace(() => $"Up, CodeChallengeSecret request '{codeChallengeRequest.ToJsonIndented()}'.", traceType: TraceTypes.Message);
nameValueCollection = nameValueCollection.AddToDictionary(codeChallengeRequest);
}
securityHeaderLogic.AddFormActionAllowAll();
logger.ScopeTrace(() => $"Up, Authentication request URL '{party.Client.AuthorizeUrl}'.");
logger.ScopeTrace(() => "Up, Sending OIDC Authentication request.", triggerEvent: true);
return(await nameValueCollection.ToRedirectResultAsync(party.Client.AuthorizeUrl));
}